'Violence and devastation spreads through Margra as the Inspector’s influence grows throughout the once peaceful lands. But Salinda, one of the Inspector’s most important weapons, has escaped. After being rescued by Nils, the last of his race, she is brought to the wondrous subterranean city of Barrahiem. With Nils’ vast store of knowledge and access to pre-Shatterwing technology, Salinda sees a way to defeat the Inspector, but only if she can convince him that humankind is worth saving.
'Above ground, Brill and rebel leader, Danton, march for the observatory of Trithorn Peak, the only city yet to fall to the Inspector’s forces. With them are one of Trithorn’s Skywatchers, and a mysterious young woman whose eyes reflect a power not unlike Salinda’s. This misfit crew must work with Trithorn’s remaining Skywatchers to prepare for a desperate battle, not only for the observatory but for the future of Margra. For it is not only the Inspector that threatens their precious lands, and the Skywatchers are the only ones that can save them from the final moonfall.'
Source: Publisher's blurb.